OpenAI is sunsetting the model for good, months after the company retired and then un-retired it for paid subscribers following user backlash over GPT-5. The company plans on retiring GPT-4o, alongside several other models, on Feb. 13. But while GPT-4o was being offered, OpenAI was also taking user feedback to shape GPT-5.1 and 5.2, which the company seems confident is satisfying customers. But some users are already pointing out that OpenAI is killing off the beloved GPT-4o the day before Valentine’s Day. GPT-4o was first retired in August when OpenAI released GPT-5, which promised better performance for ChatGPT.